Re: suspend kills serial wacom tablet

[marco <marco@metm.org>]

Bjorn Helgaas wrote:
> On Monday 16 April 2007 15:18, Dmitry Torokhov wrote:
>   
>> As far as I understand Marco has a serial Wacom table. There is no
>> in-kernel driver for serial wacoms, they are handled entirely in
>> userspace (X).
>>     
>
> Duh.  Thanks for straightening me out.  If I'd bothered to read the
> subject line, I would have been much less confused :-)
>
> Marco, since the kernel correctly detects your serial port, you should
> not need "setserial."
>
> I'm curious about the hang you saw when doing "cat /dev/ttyS0".  I
> would expect the "cat" to block until the tablet sends data.  But
> it should not affect the rest of the system, and you should be able
> to kill the "cat."  Are you observing something different?
>   
Thank you all for keeping an interest in this issue,

Yes.  I am using my laptop right now, and as it has gone to sleep, so 
the pen tablet does not work.

When I "cat /dev/ttyS0"  and move the pen on the tablet there is no 
output.  I do not get the hang that I reported before.  I apologize if 
that was erroneous but I definitely remember the laptop hanging.  Anyway 
now, I  can  ^C  and get out of the  cat.

I promise to run the tests with the new kernel and the debug lines that 
Dimitry asked for very soon.

-- 
Marco